Objects.map()

added in 0.5.0 • last revisions

Syntax

function map<T extends object, U>(object: T, callback: (value: T[typeof key], key: keyof T) => U): MappedType<T, U>

Creates a new object from an existing one by mapping all keys with a transform function.

Parameters
`object`	The object to map.
`callback`	A callback function that is called once for each enumerable key in the object and receives the value behind the key and the key itself as arguments.

Example

import { Objects } from 'potence';

const colors = {
    red: 0xff0000,
    yellow: 0xffff00,
    green: 0x00ff00,
    blue: 0x0000ff,
    purple: 0xff00ff,
    cyan: 0x00ffff
};


Objects.map(colors, color => color.toString(16).padStart(6, '0'));
// returns:
// {
//     red: 'ff0000',
//     yellow: 'ffff00',
//     green: '00ff00',
//     blue: '0000ff',
//     purple: 'ff00ff',
//     cyan: '00ffff'
// }

Remarks

This function is analogous to Array.prototype.map().